From 7439924891496025edf60c9da6a782f362a50c70 Mon Sep 17 00:00:00 2001 From: Tim Dettmers Date: Tue, 5 Oct 2021 19:16:20 -0700 Subject: Initial commit --- bitsandbytes/optim/sgd.py | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 bitsandbytes/optim/sgd.py (limited to 'bitsandbytes/optim/sgd.py') diff --git a/bitsandbytes/optim/sgd.py b/bitsandbytes/optim/sgd.py new file mode 100644 index 0000000..926d804 --- /dev/null +++ b/bitsandbytes/optim/sgd.py @@ -0,0 +1,32 @@ +# Copyright (c) Facebook, Inc. and its affiliates. +# +# This source code is licensed under the MIT license found in the +# LICENSE file in the root directory of this source tree. +from bitsandbytes.optim.optimizer import Optimizer1State + +class SGD(Optimizer1State): + def __init__(self, params, lr, momentum=0, dampening=0, + weight_decay=0, nesterov=False, optim_bits=32, args=None, + min_8bit_size=4096, percentile_clipping=100, block_wise=True): + if momentum == 0: + raise NotImplementError(f'SGD without momentum is not supported!') + super(SGD, self).__init__('momentum', params, lr, (momentum, dampening), 0.0, + weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise) + +class SGD8bit(Optimizer1State): + def __init__(self, params, lr, momentum=0, dampening=0, + weight_decay=0, nesterov=False, args=None, + min_8bit_size=4096, percentile_clipping=100, block_wise=True): + if momentum == 0: + raise NotImplementError(f'SGD without momentum is not supported!') + super(SGD8bit, self).__init__('momentum', params, lr, (momentum, dampening), 0.0, + weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise) + +class SGD32bit(Optimizer1State): + def __init__(self, params, lr, momentum=0, dampening=0, + weight_decay=0, nesterov=False, args=None, + min_8bit_size=4096, percentile_clipping=100, block_wise=True): + if momentum == 0: + raise NotImplementError(f'SGD without momentum is not supported!') + super(SGD32bit, self).__init__('momentum', params, lr, (momentum, dampening), 0.0, + weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise) -- cgit v1.2.3